A novel and efficient method for the oxidation of 2-arylindoles to synthesize 2-arylbenzoxazinones utilizing oxone as the sole oxidant has been developed. The reaction tolerates a wide range of functional groups and allows quick and atom-economical assembly of a variety of valuable 2-arylbenzoxazinones in high yields.
Copper-Catalyzed C–N Bond Formation/Rearrangement Sequence: Synthesis of 4<i>H</i>-3,1-Benzoxazin-4-ones
作者:Zhi-Yuan Ge、Qiong-Ming Xu、Xiang-Dong Fei、Ting Tang、Yong-Ming Zhu、Shun-Jun Ji
DOI:10.1021/jo400515y
日期:2013.5.3
A facile and efficient copper-catalyzed method for the synthesis of 4H-3,1-benzoxazin-4-one derivatives has been developed. This procedure is based on a tandem intramolecular C-N coupling/rearrangement process. This method would provide a new and useful strategy for construction of N-heterocycles.
Zhang, Weijiang; Liu, Ruiyan; Cook, James M., Heterocycles, 1993, vol. 36, # 10, p. 2229 - 2236
作者:Zhang, Weijiang、Liu, Ruiyan、Cook, James M.
DOI:——
日期:——
Copper-mediated oxidative tandem reactions with molecular oxygen: synthesis of 2-arylbenzoxazinone derivatives from indoles
作者:Mitsuaki Yamashita、Akira Iida
DOI:10.1016/j.tetlet.2014.03.128
日期:2014.4
We developed an efficient method for the transformation of indoles by utilizing a copper catalyst and molecular oxygen as the oxidant. The transformation involves a tandem oxidative process of 2-arylindoles. Our reaction afforded a variety of N-benzoyl anthranilic acids and benzoxazinones. Our investigation revealed that the choice of solvent and additives is critical in these reactions. (C) 2014 Elsevier Ltd. All rights reserved.
Synthesis of benzo-fused benzodiazepines employed as probes of the agonist pharmacophore of benzodiazepine receptors
作者:Weijiang Zhang、Konrad F. Koehler、Bradford Harris、Phil Skolnick、James M. Cook
DOI:10.1021/jm00032a007
日期:1994.3
in vitro evaluation of benzo-fused benzodiazepines 1-6 are described. These "molecular yardsticks" were employed to probe the spatial dimensions of the lipophilic pocket L2 in the benzodiazepinereceptor (BzR) cleft and to determine the effect of occupation of L2 with respect to agonist activity. Of the new analogs synthesized, the 7,8-benzo-fused benzodiazepine 6 displayed moderately high affinity